CHAMAN (Agencies) - Hundreds of Pakistani tribesmen blocked Nato supplies and other traffic at a key crossing on the Afghan border, a day after a clash with Afghan forces. The blockade lasted for at least four hours at the Chaman crossing. On Thursday Afghan border guards fired on Pakistani and Afghan tribesmen in the area who were holding a demonstration. Local residents said that several people were wounded in the incident. The protest was reportedly about a decision by Afghanistans government to build a customs office at the border using private land. Many of the landowners in the area come from both sides of the border. Fridays blockade was in protest against the shooting. A Pakistani border guard spokesman said that the blockade ended after security officials held talks with tribal elders and assured them their grievances would be passed on to the Afghan authorities. A security official says about 300 Pakistani tribesmen have blocked NATO supplies and other traffic. Afghan forces open fire on traders, 1 injured Commandant Frontier Corps Chaman Brigadier Abdul Rashid met with the tribal leader Haji Habib Ullah and gave his word to raise the issue with NATO forces in the next flag meeting after which protesters dispersed peacefully whereas border was reopened for all kinds of traffic.